Good job Chuck! As for your question, I guess there is a scientific answer and a simple answer. I know the better shape you get in your resting heart rate will be super low. I know when I was in the Navy and from swiming a bunch, a group of us hab irregular beats and we all were flagged at first for it. Basically we were lower than average personel. High intesity cardio would be sprints and speed drills for a short period of time. Fat burn will be your steady, long term cardio. You can do both but I prefer to space them out. I will do long slow cardio for 30 minutes to an hour, 1 day off, than spints with a recovery jog in the middle for about 10-15 mins. If you want to lose weight, anything above 30min at a pace you can have a conversation with somebody jogging along with you. I am using running as an example. All of this can be done on a treadmill as well. I would not read a bunch into chest and heartrate monitors. Just stay moving, even if its moderate walking, for 30mins and you will be fine. There are a few guys here into those monitors and wrist GPS stuff. I just don't get it. I go off how my pants and clothes fit and what the old lady and friends say when they see you! Thats your best bet. Also, those numbers are set at a minimum so 117 is slow and for a basic beginner. I know fighters try to stay at 125+ constant for stints of 3-5 mins. So, I think by now you have well exceded the charts your looking at. Hope this helps. Nothing big on my end. Did 330x2 on bench. I got a bum right shoulder problem I need to get checked this time in. I am going back to do 30 mins cardio on the glider. I will run another hour tomorrow just because I am bored!!!LOL!!